It's about one-eight-thousand-five-hundredth as tall as The Challenger Deep (Marianas Trench).
In other words, 23 nails is 0.00012057 times the height of The Challenger Deep (Marianas Trench), and the height of The Challenger Deep (Marianas Trench) is 8,293.90 times that amount.(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
The Challenger Deep, at the southern end of the Marianas Trench, reaches a depth of 190,760 nails below sea level. There has been only one manned expedition to the bottom of Challenger Deep — a 1960 voyage that took 4 hours and 48 minutes to reach the bottom.
It's about one-eight-thousand-five-hundredth as tall as Maxwell Montes.
In other words, the height of Maxwell Montes is 8,300 times 23 nails.(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 190,000 nails. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
It's about 10,000 times as tall as a sheet of Paper.
It's about 15,000 times as long as a Strand of Hair.
It's about 15,000 times as tall as a Human hair, Strand of.
It's about one-twenty-thousandth as tall as Olympus Mons.
In other words, the height of Olympus Mons is 20,000 times 23 nails.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 470,000 nails. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about one-sixty-five-thousandth as long as The Panama Canal.
In other words, the length of The Panama Canal is 67,000 times 23 nails.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 1,500,000 nails in length. Ships passing through the Canal are raised (and then lowered) 450 nails above sea level through the lock-and-dam system.